docs: def watering_time(self):
          """Return watering_time from zone."""
          # zone starts with index 0
          index = self.id - 1
          auto_watering_time =\
              self._attributes['rain_delay_mode'][index]['auto_watering_time']
  
          manual_watering_time =\
              self._attributes['rain_delay_mode'][index]['manual_watering_time']
  
          if auto_watering_time > manual_watering_time:
              watering_time = auto_watering_time
          else:
              watering_time = manual_watering_time
  
          return watering_time